/*
 * Copyright 2018 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.verifier.core.maps.util;

import java.util.ArrayList;
import java.util.List;

import org.drools.verifier.core.relations.HumanReadable;
import org.drools.verifier.core.relations.IsRedundant;

public class RedundancyResult<Parent, Item extends IsRedundant & HumanReadable> {

    public static final RedundancyResult EMPTY = new RedundancyResult();

    protected final List<Item> list = new ArrayList<>();
    private Parent parent;

    public RedundancyResult(final Item... items) {
        for (final Item item : items) {
            list.add(item);
        }
    }

    public RedundancyResult(final Parent parent,
                            final RedundancyResult<Object, Item> result) {
        this.parent = parent;
        list.addAll(result.list);
    }

    public boolean isTrue() {
        return !list.isEmpty();
    }

    public Item get(final int i) {
        return list.get(i);
    }

    public Parent getParent() {
        return parent;
    }
}
